CN103826260B - Method and apparatus for being efficiently treated through in a wireless communication system to packet - Google Patents

Method and apparatus for being efficiently treated through in a wireless communication system to packet Download PDF

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Publication number
CN103826260B
CN103826260B CN201410050939.9A CN201410050939A CN103826260B CN 103826260 B CN103826260 B CN 103826260B CN 201410050939 A CN201410050939 A CN 201410050939A CN 103826260 B CN103826260 B CN 103826260B
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packet
pdu
thresholds
module
continuous
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CN103826260A (en
Inventor
V·A·库马尔
B·秋
A·拉伊钠
S·马赫什瓦里
G·A·肖
Y·S·高达
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Qualcomm Inc
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Qualcomm Inc
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/04—Registration at HLR or HSS [Home Subscriber Server]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
    • H04L47/2416—Real-time traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/28—Flow control; Congestion control in relation to timing considerations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/32—Flow control; Congestion control by discarding or delaying data units, e.g. packets or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/38—Flow control; Congestion control by adapting coding or compression rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/90—Buffering arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/04—Protocols for data compression, e.g. ROHC
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0284—Traffic management, e.g. flow control or congestion control detecting congestion or overload during communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • H04L1/0017—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy where the mode-switching is based on Quality of Service requirement
    • H04L1/0018—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy where the mode-switching is based on Quality of Service requirement based on latency requirement
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols

Abstract

This document describes the efficient packet contributed in a wireless communication system（Such as, PDCP（PDCP）Protocol Data Unit（PDU）Or service data unit（SDU））The system and method for processing.It is as described herein, it can be monitored and be compared with the tolerable continuous quantity for being dropped packet due to the quantity for the continuous packet being dropped caused by discarding timer expiration event and/or other reasons.If the continuous quantity for being dropped packet is not above the tolerable quantity being continuously grouped, it is convenient to omit the conventional treatment for being dropped each packet after packet is operated, such as header amendment and compression, encryption, thus processing expense is significantly reduced.As further described herein, the tolerable continuous quantity for being dropped packet can be selected to maintain header-compressed（For example, robust header compression（RoHC））Synchronous, encryption synchronisation and/or other suitable performances.

Description

Method and apparatus for being efficiently treated through in a wireless communication system to packet
It is on 08 07th, 2009 the applying date that the application, which is, entitled " in a wireless communication system for based on timer The efficient packet transaction abandoned ", the divisional application of the patent application of Application No. 200980130157.3.
Cross reference
This application claims " the METHOD AND APPARATUS FOR SERVICE submit, entitled on the 7th of August in 2008 DATA UNIT (SDU) DISCARD PROCEDURE IN WIRELESS NETWORKS " U.S. Provisional Application No. 61/087, 074 rights and interests, entire contents are hereby incorporated herein by.
Technical field
The disclosure relates generally to radio communication, and relate more specifically to be used in a wireless communication system grouping management and The technology of processing.
Background technology
Wireless communication system is widely deployed to provide various communication services, for example, can pass through the wireless communication system Voice, video, grouped data, broadcast and messenger service are provided.These systems can be multi-address system, its can by it is shared can System resource supports the communication of multiple terminals.The example of the multi-address system includes CDMA (CDMA) system, time-division Multiple access (TDMA) system, frequency division multiple access (FDMA) system and OFDM (OFDMA) system.
Generally, wireless multiple-access communication system can support the communication of multiple wireless terminals simultaneously.Within the system, it is each whole End can pass through transmission on either the forward or the reverse links and one or more base station communications.The forward link (or downlink) The communication link from base station to terminal is referred to, and the reverse link (or up-link) refers to the communication from terminal to base station Link.It can be built by single-input single-output (SISO), multiple input single output (MISO) or multiple-input and multiple-output (MIMO) system Found the communication link.
In the realization of various radio communications, the information of data, control signaling etc. can be in the form of respective packet Transmission.The packet transmitted in wireless network can include, for example, PDCP (PDCP) protocol Data Unit (PDU), service data unit (SDU) etc..Further, various radio communication devices can be configured with based on timer Packet discard and/or other similar functions.In such example, configuration abandons timer and should by the timer Use each packet, so as to it is given be grouped in the discarding timer expiration for the packet configuration before the event that is not transmitted In, the packet is abandoned to save the air bandwidth related to fail message transmission.
Generally, in the discarding timer expiration associated with packet and when then abandoning the packet, related channel radio The PDCP layers of letter equipment can be required to not be transmitted all other identified and queuing also still to transmit Packet perform each operation (for example, PDCP header amendments, encryption is reruned, header-compressed updates etc.).Therefore, largely it is being grouped In the case of being arranged on before discarding packet, it will be appreciated that, operation is probably significantly to take money after required discarding Source, this and then may reduce the performance of whole emitter.Accordingly, it is desirable to realize at least can in radio data network Enough mitigate the packet processing technique of disadvantages mentioned above.
The content of the invention
The brief overview of various aspects of theme claimed is described below to provide to basic in terms of these Understand.This general introduction is not the comprehensive review to all contemplated aspects, and unawareness map logo is crucial or critical elements, is also not intended to Scope in terms of these is described.Its sole purpose is, with some concepts of aspect disclosed in brief form place of matchmakers, to be used as it The preamble in greater detail being introduced afterwards.
According on one side, this document describes a kind of method.This method can include recognizing to be discarded one or many Individual packet；Determine whether the quantity of packet to be discarded can be so that the continuous quantity for being dropped packet be more than the threshold value being grouped Quantity；When it is determined that the quantity of packet to be discarded will cause the quantity for being continuously dropped packet to be more than the number of threshold values of packet During amount, abandon the one or more packets and at least one packet transaction behaviour is performed in each remaining identified packet Make；And when the quantity for determining packet to be discarded will not cause the quantity for being continuously dropped packet to be more than the threshold value of packet During quantity, the one or more packets are abandoned without handling each remaining identified packet.
Second aspect described herein is related to a kind of radio communication device, and it can include memory, the memory storage The data related to PDCP (PDCP) entity and each packet, each point associated with the PDCP entities Group includes one or more designated packets to be discarded and one or more follow-up packets；And processor, it is used to abandon One or more designated packets, it is determined that abandoning whether one or more designated packets can cause continuously to be dropped packet Quantity is more than the number of thresholds of packet, and when the continuous quantity for being dropped packet of determination has been above the number of thresholds of packet When, perform the operation of at least one packet transaction in each follow-up packet.
The third aspect is related to a kind of device, and it can include：For abandoning one when the discarding timer expiration of association Or the module of multiple packets；For determining the number of thresholds for being dropped packet whether is reached when abandoning the one or more packets Module；And during for being not reaching to the number of thresholds for being dropped packet when it is determined that abandoning the one or more packets, Proceed without handling each module being subsequently grouped again.
Fourth aspect described herein is related to a kind of computer program product, and it can include computer-readable medium, should Computer-readable medium includes being used to make computer abandon one or more PDCP agreements in the discarding timer expiration of association The code of data cell (PDU)；PDU is dropped for making computer determine whether to reach when abandoning one or more PDU Number of thresholds code；And PDU number of threshold values is dropped for being not reaching to when it is determined that abandoning one or more PDU During amount, the code for making computer proceed without handling each follow-up PDU again.
In order to reach foregoing and related target, the one or more aspects of theme claimed are including following detailed The thin feature introduced and be particularly pointed out in the claims.Following description and accompanying drawing illustrates master claimed Some exemplary aspects of topic.However, simply having an indication that the principle that can use theme claimed in terms of these Some in various modes.And then, these disclosed aspects are intended to include the equivalent aspect of all these aspects and they.
Brief description of the drawings
Fig. 1 is the efficient pipe abandoned according to the packet based on timer being used in a wireless communication system of various aspects The block diagram of the system of reason.
Fig. 2 is easy for the block diagram of the system of the discarding post processing of each packet of queuing up.
Fig. 3 is being used for and each associated choosing based on threshold value of packet discarding based on timer according to various aspects Select the block diagram of the system of processing.
Fig. 4 is the block diagram for being used to be grouped drop threshold selection and/or the system calculated according to various aspects.
Fig. 5-6 is the stream of each method that is used for efficient division operation and/or processing associated with packet discarding operation Cheng Tu.
Fig. 7 is associated with various improved PDU treatment technologies described herein for selecting the threshold value to be used The flow chart of method
Fig. 8 is to contribute to the system of the efficient PDU operations for the discarding based on timer in a wireless communication system Block diagram.
Fig. 9-10 is the block diagram that can be used to realize each Wireless Telecom Equipment of various aspects described herein.
Figure 11 illustrates the wireless multiple-access communication system according to various aspects set forth herein.
Figure 12 is the block diagram for illustrating example wireless communications, can run within the system it is described herein each Aspect.
Embodiment
The various aspects of theme claimed are described referring herein to accompanying drawing, like number is used for table wherein in full text Show same element.In the following description, for illustrative purposes, many specific details are elaborated to provide to one or many The thorough understanding of individual aspect.It may be evident, however, that these aspects can also be implemented during without these specific details.In other examples In, known structure and equipment are represented in block diagram form, in order to describe one or more aspects.
Used term " part ", " module " in this application, " system " etc. is intended to refer to the related entity of computer, Can be hardware, firmware, the combination of hardware and software, software or executory software.For example, a part can be, still It is not limited to, process, integrated circuit, object, executable, execution thread, program, and/or the computer run on a processor.Make For citing, the application program and the computing device run on the computing device can be parts.One or more parts can be with In the process and/or thread of execution, and part can be located on a computer and/or be distributed in two or more Between computer.In addition, these parts can be held from each computer-readable medium of the various data structures with storage OK.These parts can be communicated in the way of locally and/or remotely process, such as according to the letter with one or more packets Number (for example, by the signal, the data from a part are handed over another part in local system, distributed system Mutually, and/or across network as such as internet interacted with other systems).
Further, various aspects are described herein in conjunction with wireless terminal and/or base station.Wireless terminal can point to user The equipment that voice and/or data cube computation are provided.Wireless terminal may be coupled to such as laptop computer or desktop computer it The computing device of class, or it can be the equipment for itself including computing device, such as personal digital assistant (PDA).It is wireless whole End can also be referred to as system, subscriber unit, subscriber station, mobile station, movement, distant station, access point, remote terminal, access eventually End, user terminal, user agent, user's set or user equipment (UE).Wireless terminal can be subscriber station, wireless device, honeybee Cellular telephone, pcs telephone, wireless phone, session initiation protocol (SIP) phone, wireless local loop (wireless local Loop, WLL) stand, personal digital assistant (PDA), the handheld device with wireless connection capability or other be connected to wireless-modulated The processing equipment of demodulator.Base station (for example, access point or node B) can refer to passes through one by air interface within the access network Individual or multiple sectors and the equipment of wireless terminal communications.The base station is grouped by the way that the air interface frame received is converted into IP, Internet protocol (IP) can be included as the router between wireless terminal and the remainder of access network, the access network Network.The base station also adjusts the management of the attribute for the air interface.
Furthermore it is possible to realize various functions described herein with hardware, software, firmware or any combination of them.Such as Fruit realizes that the function can be stored or passed as one or more instructions on a computer-readable medium or code with software It is defeated.Computer-readable medium includes computer-readable storage medium and communication media, and the communication media is easy to from a ground comprising any Point transmits the medium of computer program to another place.Storage medium can be can be by any available matchmaker of computer access It is situated between.Unrestricted as an example, the computer-readable medium can be deposited including RAM, ROM, EEPROM, CD-ROM or other CD Reservoir, magnetic disk storage or other magnetic storage apparatus or it is any other can be used for carrying or store instruction or data knot The desired program code of configuration formula and the medium that can be accessed by a computer.Equally, any connection can be properly termed as Computer-readable medium.If for example, using coaxial cable, optical cable, twisted-pair feeder, number from website, server or other remote sources The wireless technology transmitting software of word subscribers' line (DSL) or such as infrared, radio and microwave etc, the then coaxial cable, light The wireless technology of cable, twisted-pair feeder, DSL or such as infrared, radio and microwave etc is also included within the definition of medium.This In use disk and CD include compact disk (CD), laser disk, optical compact disks, digital multi-purpose disk (DVD), floppy disk and Blu-ray disc (BD), wherein disk reproduce data and CD generally in the way of magnetic utilize laser reproduce data in an optical manner. Combination above is also included within the scope of computer-readable medium.
Various techniques described herein can be used various wireless communication systems, such as CDMA (CDMA) system, Time division multiple acess (TDMA) system, frequency division multiple access (FDMA) system, OFDM (OFDMA) system, Single Carrier Frequency Division Multiple Access (SC- FDMA) system and other such systems.The terms " system " and " network " frequent used interchangeably.Cdma system energy Enough radiotechnics for realizing such as universal terrestrial radio access (UTRA), CDMA2000 or the like.UTRA includes wideband CDMA (W-CDMA) and others CDMA deformation.In addition, CDMA2000 covers IS-2000, IS-95 and IS-856 standard.TDMA System can realize the radiotechnics of such as global system for mobile communications (GSM) etc.OFDMA system, which can be realized, such as to be drilled UTRA (E-UTRA), Ultra-Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), the IEEE entered 802.20、Or the like radiotechnics.UTRA and E-UTRA are Universal Mobile Telecommunications System (UMTS) A part.3GPP Long Term Evolutions (LTE) are that it is in downlink using OFDMA and upper using the estimated versions of E-UTRA Line link uses SC-FDMA.UTRA, E- are described in the document of the tissue of entitled " third generation partner program " (3GPP) UTRA, UMTS, LTE and GSM.In addition, entitled " described in the document of the tissue of third generation partner program 2 " (3GPP2) CDMA2000 and UMB.
Various aspects will be introduced in the form of the system including multiple equipment, part, module etc..It is understood and appreciated that Various systems can include other equipment, part, module etc., and/or including all equipment with reference to accompanying drawing discussion, portion Part, module etc..The combination of these modes can also be used.
Referring to accompanying drawing, Fig. 1 illustrates to be used to be based in a wireless communication system according to various aspects described herein The system 100 for the efficient management that the packet of timer is abandoned.As shown in figure 1, system 100 can include enode b (eNB, Base station, access point (AP) etc. are also referred to as herein) 110, it can be with one or more user equipment units (UE, herein In also referred to as access terminal (AT), mobile terminal etc.) 120 communications.In an example, eNB 110 can use one or Multiple downlinks (DL, also referred to as forward link (FL)) communicate with UE 120, and UE 120 can use one or many Individual up-link (UL, also referred to as reverse link (RL)) communicates with eNB 110.In another example, eNB 110 can be with The cordless communication network of UMTS (Universal Mobile Telecommunications System) terrestrial access network (E-UTRAN) of such as evolution etc or Their part of person (for example, cell, sector etc.) is associated.In addition, eNB 110 can be with one or more such as system controls Other network entities of device (not shown) processed etc. cooperate, to coordinate the communication between eNB 110 and UE 120.
In one example, eNB 110 and UE 120 can among each other and/or with other entities in system 100 it Between data, control signaling and/or other information, the packet such as PDCP, PDU, SDU are transmitted in the form of respective packet Deng it can be configured as including respective information.For example, the processor 142 at eNB 110 and/or UE 120 can be only On the spot or under the auxiliary of memory 144, one or more packets by the transmission in system 100 are generated.Additionally or Alternatively, the memory 144 at eNB 110 and/or UE 120 can be used for before, during or after respective transmission Store respective packet or corresponding information.For example, data source 132 can be whole or in part by processor 142 and/or storage Device 134 is realized, to provide corresponding packet and/or other information to eNB 110 and/or UE120 each subassembly, such as this Generally described by text.Furthermore it is possible to which, it is realized that each processor 142 and/or memory 144 can be used realization herein On all or part of function described by eNB 110, UE 120, or it is described below in illustrated they it is any Subassembly or module.
, can be by using described herein and/or well known in the art one or more PDCP layers according to one side Mechanism come realize in system 100 each packet transmission.For example, data source 132 can be configured as in PDCP layers of arrangement respectively Individual PDCP SDU and/or other information element, to be then transmitted and/or pass through by the emitter (not shown) of association PHM packet handling module 136 is handled.
In another example, packet discard module 134 can be implemented in eNB 110 and/or UE120, will pass through The packet discard based on timer for each SDU is provided, to increase the whole efficiency of the communication in system 100. More specifically, packet discard module 134 can be configured with corresponding to each PDCP entity (e.g., radio bearer, communication Channel etc.) each abandon timer, wherein, the PDCP be physically configured with packet abandon.In an example, it is grouped Discard module 134 can independently calculate each and abandon timer.Additionally or alternatively, packet discard module 134 can be from Native processor 142, the network controller associated with system 100 and/or another network entity, and/or it is any other suitable Source receives the information related to each discarding timer.In one example, various factors can be based on, such as with PDCP Application type, the service quality (QoS) associated with PDCP entities or delay requirement, and/or use PDCP that entity is associated Application of entity etc., is that given radio bearer and/or other PDCP entity setting ups abandon timer accordingly.
According on one side, when abandoning timer for given PDCP entity configurations, packet discard module 134 can be by Configure to determine for each PDCP SDU and/or for starting to abandon in other packets of the corresponding PDCP arrangements physically transmitted When device.Then, if the discarding timer associated with PDCP entities start abandon timer SDU transmission early stage It is full, then the SDU can be considered as failure and be grouped discard module 134 and abandon, to save the biography with failure SDU Defeated related air bandwidth.Similarly, if it is determined that the PDCP PDU corresponding with the SDU that this is dropped be submitted to It is one or more that PHM packet handling module 136 and/or eNB 110 and/or UE 120 any other suitable part are associated Lower layer (for example, wireless spread-spectrum technology (RLC)), the discarding can be pointed at suitable lower layer.
According to a further aspect, abandon PDCP SDU after, PHM packet handling module 136 can be configured as to arrangement with Just one or more processing operations are performed in the PDCP each PDCP PDU physically transmitted, wherein, for the PDCP PDU, is not transmitted also (for example, PDU associated with the PDCP-RLC watermark stages) when SDU abandons timer expiration.Example Such as, as shown in the block diagram 200 in Fig. 2, PHM packet handling module 136 can will pass through each of PDCP entity transmissions to arrangement PDU performs various processing operations, wherein, it physically there occurs that SDU is abandoned in the PDCP.These operations can include and each The processing again (for example, by header correcting module 202) of PDCP headers of PDU associations, encryption parameter recalculate (example Such as, by computations module 204), the execution of the header-compressed of associated with each PDU renewal is (for example, pass through header pressure Contracting module 206), the execution (e.g., by integrity protection module 208) of integrity protection program that updates, and/or any other Suitable operation.
For further specific example, module 202-208 operation is carried out as follows., can on header correcting module 202 To recognize that each PDU can be configured as including each PDCP header in their initial creation.For example, it will be appreciated that Arrive, PDU can be transferred to estimated receiver according to the order being pre-configured with.This can sequentially be instructed in each PDU, For example, passing through the continuous P DCP sequence numbers (SN) for the continuous P DU for including corresponding in sequence in PDCP headers.However, it is possible to It is further appreciated that, the PDCP sequence interruptions comprising the PDU being dropped can be caused by abandoning the PDU and/or SDU corresponding to PDU. Therefore, header correcting module 202 can be used each PDU after the PDU that rearrangement is dropped, so as in whole PDU The continuity of middle holding PDCP sequences.
In another example, computations module 204 can be easy to corresponding with each PDU after the PDU being dropped Each encryption parameter (such as COUNT-C's) recalculates., can to the given packet based on PDCP SN as further example To recalculate various encryption parameters, and/or the other parameters related to packet.Therefore, it is dropped and follow-up in packet In the case that packet is by header correcting module 202 and/or any other suitable device rearrangement, with follow-up packet associated Encryption parameter based on the SN distributed before may become invalid in some cases.Therefore, computations module 204 can Be used for based on the amendment with the packet associated PDCP order recalculate respectively with follow-up packet associated encryption ginseng Number.
Similarly, in the case where each packet is arranged to compression, header compression module 206, which can be used, to be based on The order of each packet performs robust header compression (RoHC) and/or other compress techniques in each packet.Therefore, with In the case that the PDCP SN of set of group association are changed due to packet discarding by header correcting module 202, repaiied in PDCP SN The header compression operation performed before just in each packet may become invalid in some cases, because being necessary to use Header compression module 206 repeats each compression being grouped to be grouped respective new SN based on each.
In further example, integrity protection module 208 can be alternatively used to specify in radio one group The PDU transmitted in carrying repeats one or more integrity protection operations, and wherein the radio bearer has abandoned SDU.It is complete Whole property protection module 208 can be with such as signaling radio bearer (SRB) and/or any other needing the radio bearer of certification It is used in connection with.
Return to Fig. 1, it will be appreciated that substantial amounts of PDU by eNB 110 and/or UE 120 PDCP layers queue up so as to In the case of transmitting (for example, by rlc layer), performed by PHM packet handling module 136 each operate be probably significantly to take money Source.In addition, in the case where performing RoHC, encryption and/or other operations by software, these operations may cause in correlation Processor 142 on a large amount of loads and/or cause a large amount of calculating on eNB 110 and/or UE 120 and/or processing to disappear Consumption.In one example, excessive load and resource are using may cause the decline of overall transmitter performance.
Therefore, in order to mitigate above-mentioned hydraulic performance decline, eNB 110 and/or UE 120 can realize discarding count supervisor 138, to adjust each discarding and processing for being grouped of queued for transmission.According on one side, the energy of count supervisor 138 is abandoned Enough header-compressed, encryption and/or robustness of other operations using execution related to packet queue, come cause eNB 110 with/ Or UE 120 can be abandoned at least one of packet and be omitted the packet transaction performed by PHM packet handling module 136.More specifically Ground, abandon count supervisor 138 can aid in by PHM packet handling module 136 perform as discussed previously with respect to the module in Fig. 2 The omission of each process step described by 202-208, so as to abandon the feelings of timer expiration in given PDCP SDU SDU Under condition, the occupancy processing required for eNB 110 and/or UE 120 overall complexity and eNB 110 and/or UE 120 is reduced The quantity of device operation.
Turning now to Fig. 3, the exemplary realization for abandoning count supervisor 138 is illustrated in greater detail by block diagram 300.Tool Body, block diagram 300 is illustrated can be between packet discard module 134, discarding count supervisor 138 and PHM packet handling module 136 The exemplary interaction performed.It is to be appreciated that the technology illustrated by Figure 30 0 can by user or terminal device (e.g., UE 120), Network entity, network cell or node b apparatus (e.g., eNB 110), and/or any other suitable Wireless Telecom Equipment are real It is existing.Additionally it should be appreciated that the module illustrated in Figure 30 0 is not intended as exhaustion to their related functions described herein Possible module and/or the operation that can be performed.It will be appreciated that, it is desirable to the theme of protection is not limited to any spy Fixed module group and/or operational group, unless separately explicitly pointed out.
According on one side, packet discard module 134 can be corresponding as generally described by above based on being arranged to Each of PDCP entities abandons timer 312 to be operated.In one example, when corresponding to one or more SDU and/or When the discarding timer 312 of other packets expires, packet discard module 134 can be realized according to many aspects described herein The discarding of packet.Then, discarding counting module 138 can utilize and abandon count update module 322 and/or other suitable devices To increase the discarding counting for corresponding PDCP entities.
The discarding used by discarding count update module 322, which is counted, to be corresponded to, for example, being grouped discard module The 134 multiple continuous or successive packets abandoned.Therefore, in one example, when abandoning packet, count supervisor energy is abandoned Enough compare be used for given PDCP entities discarding count indicated by be dropped point with the continuous of the PDCP entity associateds The current quantity of group and predetermined discarding count threshold 324.Compared based on this, abandoning count supervisor can optionally adjust The subsequent treatment of remaining packet of queuing up, so as to only in the continuous of the PDCP entities indicated by the discarding counting as PDCP entities When the quantity for the packet being dropped has exceeded the discarding count threshold 324, follow-up processing is just carried out.It is expressed another way, If being not more than the discarding count threshold 324 by the continuous quantity for being dropped packet for abandoning counting indicator accordingly, by dividing One or more discard processing steps that group processing module 136 is performed can be skipped.As a result, it will be appreciated that, if The PDCP entities of transmission have abandoned the SDU less than the quantity defined by discarding count threshold 324 or other packets, and each is lost Abandoning operation (e.g., as performed by module 202-208) can be avoided by, so as to reduce overall complexity and when being used for one The occupancy processing required when expiring of individual or multiple given PDCP SDU and/or the discarding timer 312 of other types of packet The quantity of the operation of device.
According to a further aspect, it can select to abandon count threshold 324 to arrive the regulation of the robustness of related transmission equipment The continuous packet of given quantity is abandoned.Block diagram 400 in Fig. 4 illustrates to abandon an example of the selection of count threshold 324.Such as Shown in block diagram 400, abandoning count threshold 324 can be chosen based on following content：For the associated encryption of each packet loss The robustness of engine, it can be represented as encrypting threshold value 402；For the related RoHC and/or other pressures of each packet loss The robustness of contracting engine, it can be represented as compression threshold 404；Discontinuous transmission (DTX) based on related voice encoder The speech coder threshold value 406 of cycle selection；And/or any other suitable factor.
As an example, mechanism can be provided in the encryption and/or compression process associated with transmission equipment, so as in transmission Period loses the continuous synchronization safeguarded in the case of being grouped between transmission equipment and intended receiver.Therefore, according to one side, Abandon count threshold 324 to make it possible to tolerate that the continuous of the quantity being pre-configured with is dropped packet, without further processing.It is logical Cross and so do so that the equipment of association can abandon a kind of form for regarding packet loss of doing it on purpose as by being grouped, so that this sets It is standby to utilize for the technology recovered from continuous lost packets come additionally extensive from packet progress is continuously dropped It is multiple.
According to further aspect, can based on encryption threshold value 402, compression threshold 404, speech coder threshold value 406, And/or any other suitable threshold parameter or combinations thereof select to abandon count threshold 324.In an example, plus Close threshold value 402 can correspond to potentially result in transmission equipment forfeiture and the company of the encryption synchronisation of intended receiver of correlation The minimum number that continuous SDU is abandoned.It can select to encrypt threshold value based on PDCP sequence lengths and/or any other suitable parameter 402。
Additionally or alternatively, compression threshold 404 can correspond to potentially result in associated with transmission equipment Compression engine (e.g., RoHC engines) lose it is synchronous with intended receiver (for example, cause compressor reducer in transmission equipment and Synchronous forfeiture between decompressor in receiving device) the minimum numbers that abandon of continuous SDU.It can be reported based on such as RoHC Head type (e.g., type 0 or Class1), defined in the realization of relevant device to the tolerance level desired by packet loss, phase RoHC configuration parameters used in equipment (e.g., parameter related to decoding interval etc.) etc. are closed to select compression threshold 404.
Although block diagram 400 illustrates encryption threshold value 402, the compression threshold 404 used when selection abandons count threshold 324 With speech coder threshold value 406, but it is to be appreciated that it can be selected based on any suitable threshold parameter or combinations thereof Abandon count threshold 324.Therefore, as a specific example, RoHC and encryption the two be both configured to by relevant device in use, Abandoning count threshold 324 can be selected as encrypting the minimum value in threshold value 402 and compression threshold 404, and/or encryption threshold value 402nd, any other suitable functions of compression threshold 404 and/or speech coder threshold value 406.Alternatively, if RoHC not by with It is set to and is used by given equipment, encryption threshold value 402 (and/or speech coder threshold value 406) can be based only upon to select to abandon Count threshold 324.As another alternative, it is packed compressed not by the device configuration related to block diagram 400 in the case of, can Shandong of one or more PDCP technologies to continuous packet loss as used in equipment is balanced to select to abandon count threshold 324 The degree of rod.However, generally, it will be appreciated that, it can select to abandon count threshold based on any suitable parameter 324, and theme claimed is not limited to any particular technology for being used to select to abandon count threshold 324, unless Separately clearly state.
Fig. 3 is returned to, the given discarding count threshold selected for one or more modes according to general description herein 324, the packet transaction in the environment of timer expiration event is abandoned can be carried out as described in following example.Most Just, when the discarding timer 312 associated with given PDU expires, abandoning count supervisor 138 can determine to abandon timing Whether the expired PDU of device is continuous with the PDCP PDU that abandon before.If it is, abandoning count update module 322 can increase Plus the current discarding of the PDCP entity associated with the PDU is counted.Otherwise, abandoning count update module 322 can count abandoning Number is set to 1, to reflect the fact that current PDU is the continuous PDU of to be discarded first.The discarding count update it Before, any suitable time during or after, packet discard module 134 can additionally realize discarding the phase of timer 312 Full PDU discarding.
When having abandoned the expired PDU of timer 312 and correspondingly having have updated discarding timer, the discarding timer Can be compared with abandoning count threshold 324.In one example, count no more than count threshold 324 is abandoned, divide if abandoned Group processing module 136 can be configured as substantially omitting the PDU arranged below all processing and be grouped discard module 134 It can be configured as waiting new discarding timer expiration event.
Alternatively, if it is determined that abandon counting and exceeded discarding count threshold 324, PHM packet handling module 136 can by with It is set to and one or more processing operations is performed on each continuous PDU, such as PDCP headers amendment, encryption is recalculated, updated Header-compressed etc..In addition, abandon count update module 322 can be configured as the PDCP entities to having abandoned PDU is related The discarding of connection counts and is re-set as 0, to indicate that PHM packet handling module 136 has been processed by each PDU.It is follow-up having handled PDU and reset discarding count after, packet discard module 134 can be configured to attempt to the new discarding timer phase The detection of full event.
Below with reference to Fig. 5 to 7, the method that can be performed according to various aspects set forth herein is which illustrated.However, for Simplify the purpose explained, these methods are illustrated and are described as a series of actions, it is possible to understand that and recognize these methods not The order acted is limited, according to one or more aspects, some actions can with from it is illustrated herein or description different Order occurs and/or occurred simultaneously with other actions.For example, skilled artisans appreciate that simultaneously, it is realized that method can A series of be mutually related state or events are alternatively represented as, such as in state diagram.In addition, and non-required all showing Action realize the method according to one or more aspects.
Reference picture 5, which illustrates the side for the efficient division operation associated with packet discarding operation and/or processing Method 500.It should be appreciated that method 500 can be by for example, node B or eNB equipment (e.g., eNB110), terminal or user equipment (e.g., UE 120), and/or any other suitable network equipment are performed.Method 500 starts from frame 502, wherein identifying (example Such as, by being grouped discard module 134) one or more packets (e.g., PDCP PDU or SDU) to be discarded.Then, in frame 504, it is determined that whether (e.g., by abandoning count supervisor 138) number of packet to be discarded can cause continuously to be dropped point The quantity of group goes above the number of thresholds (e.g., abandoning count threshold 324) of packet.In one example, used in frame 504 Threshold value be potentially based on compression threshold (e.g., compression threshold 404), encryption threshold value (e.g., encrypt threshold value 402), speech coder threshold It is worth (e.g., speech coder threshold value 406), and/or other suitable threshold values.
When making affirmative determination in block 504, method 500 can terminate in frame 506, wherein the packet recognized in frame 502 It is dropped and the operation of at least one packet transaction is performed in each remaining packet (for example, by PHM packet handling module 136).The operation performed in frame 506 can include, for example, the reconstruct of PDCP headers, the recalculating of encryption parameter, packed compressed Re-execute (e.g., RoHC) etc..Otherwise, method 500 can terminate as described in frame 508, wherein being recognized in frame 502 Packet be dropped without handling each packets remaining.
Turning now to Fig. 6, which illustrate for abandoning the associated efficient division operation of operation and/or processing with packet The flow chart of another method 600.In the mode similar to method 500, method 600 can be by, for example, node B or eNB equipment, Terminal or user equipment, and/or any other suitable network entity are performed.Method 600 starts from frame 602, wherein identifying Abandon timer expiration event (e.g., abandoning expiring for timer 312 corresponding to given PDU).Then, in frame 604, it is determined that with Whether it is continuous in the corresponding PDU of the discarding timer expiration event of frame 602 PDU being dropped with before.If corresponding The PDU and PDU that is dropped before be continuous, method 600 can proceed to frame 606, wherein associated with the PDU is advance The discarding of configuration is counted to be increased (e.g., corresponding to the PDCP entity associated with the transmission of the PDU) and (e.g., counted by abandoning Update module).Otherwise, it may infer that the continuous discarding being continuously grouped does not occur and method 600 can be carried out alternatively To frame 608, wherein the discarding associated with the PDU, which is counted, is arranged to 1.
When the action that is described at frame 606 and/or frame 608 is completed, method 600 may proceed to frame 610, wherein with this The corresponding PDU of timer expiration event is abandoned to be dropped.Then, in frame 612, it is determined that the continuous quantity for being dropped packet (being maintained in frame 606-608) whether beyond predetermined packet number of thresholds.If it is determined that being not above the threshold value of packet Quantity, the returns frame 602 of method 600 is to detect new discarding timer expiration event., whereas if having been over the threshold of packet Be worth quantity, method 600 can alternatively proceed to frame 614, wherein to be forwarded to lower level each PDU (e.g., be queued so as to Transmission) perform such as PDCP headers amendment, encryption recalculate, header-compressed amendment, and/or integrity protection amendment etc Operation.Method 600 may proceed to frame 616, be reset to 0 to indicate the processing described in frame 614 wherein abandoning and counting Have been carried out, method 600 can return to frame 602 to detect new discarding timer expiration event after this.
Fig. 7 is illustrated for selecting the threshold value that is used in combination with various improved PDU treatment technologies described herein (e.g., Abandon count threshold 324) method 700.Method 700 can be by for example, eNB, UE and/or any other suitable network be real Body is performed.As shown in fig. 7, method 700 can with perform by described by frame 702 and/or frame 704 each action.More Body, in frame 702, it can be based at least partially on and not lose emitter header-compressed engine (e.g., RoHC engines) and correlation The quantity for the continuous packet that can be dropped in the case of synchronization between receiver, to determine that packet threshold parameter (e.g., is compressed Threshold value 404).In one example, can be in frame 702 based on header type, the side of execution as used in related set of group The entity of method 700 is desired to packet loss or synchronous forfeiture to be born level, and/or any other suitable factor to select Packet threshold parameter.
Additionally or alternatively, in frame 704, it can be based at least partially on not lose the encryption with intended receiver same The quantity for the continuous packet that can be dropped in the case of step, to determine packet threshold parameter (e.g., encrypting threshold value 402).In frame 704, it can be based on, for example, selecting packet for being grouped the PDCP sequence lengths and/or any other suitable information of transmission Threshold parameter.
According on one side, when after the completion of the action described by frame 702 and/or frame 704, method 700 may proceed to Frame 706, wherein selecting the number of thresholds that tolerable packet is abandoned based on the packet threshold parameter of one or more determinations.Example Such as, it is tolerable packet abandon number of thresholds can frame 706 be selected as it is following in one：Determined by frame 702 Compression threshold parameter, determined by the frame 704 encryption threshold parameter, based on the associated voice of the entity with performing method 700 The DTX cycles of encoder and calculate threshold parameter, based in frame 702 and 704 or each threshold value determined by other manner Parameter (e.g., header-compressed threshold value and encryption threshold value minimum value and/or threshold parameter any other suitable function) and/ Frame 702-704 or determined by other manner packet threshold parameter any other suitable combination.
Referring to Fig. 8, which illustrate be easy in a wireless communication system be used for the efficient of the discarding based on timer The device 800 of PDU processing.It should be appreciated that device 800 is represented as including functional block, the functional block can be represent by Manage the functional block for the function that device, software or combinations thereof (such as firmware) are realized.Device 800 can be by base station (e.g., eNB 110), mobile terminal (e.g., UE 120) and/or any other suitable network entity are realized, and can include being used in phase The module 802 that one or more packets are abandoned when abandoning timer expiration is closed, for being determined when abandoning one or more packets The module 804 for the number of thresholds for being dropped packet whether has been reached, and has determined to be not reaching to the threshold for being dropped packet for working as The module 806 for not handling each follow-up is grouped during value quantity again and proceeding.
Fig. 9 is the block diagram of system 900, and it can be used to the various aspects for realizing functions described herein.Show at one In example, system 900 includes base station or node B 902.As illustrated, node B 902 can pass through one or more receptions (Rx) Antenna 906 receives signal from one or more UE 904, and by one or more transmitting (Tx) antennas 908 to one or more The transmission signals of UE 904.In addition, node B 902 can include the receiver 910 for receiving the information from reception antenna 906. In one example, receiver 910 can be by exercisable associated with demodulator (Demod) 912, and demodulator demodulation is received Information.Next demodulation symbol can be analyzed by processor 914.Processor 914 can be coupled to memory 916, its energy Enough storages information related with access terminal distribution to code clusters, be associated with check and accept table, specific scramble codes sequence, and/or The information of other suitable types.In addition, node B 902 can use processor 914 to perform method 500-700 and/or other The suitable method of class Sihe.In one example, node B 902 can also include modulator 918, and it can pass through transmitting antenna The signal that 908 multiplexings are transmitted by emitter 920.
Figure 10 is the block diagram of another system 1000, and the system can be used for each side for realizing functions described herein Face.In one example, system 1000 includes mobile terminal 1 002.As shown, mobile terminal 1 002 can by one or Multiple antennas 1008 receive signal and to one or more transmission signals of base station 1004 from one or more base stations 1004.In addition, Mobile terminal 1 002 can include the receiver 1010 from the receive information of antenna 1008.In one example, the energy of receiver 1010 It is enough exercisable associated with demodulator (Demod) 1012, the information that demodulator demodulation is received.Demodulation symbol can connect down To be analyzed by processor 1014.Processor 1014 can be coupled to memory 1016, and it can be stored and mobile terminal 1 002 Related data and/or program code.In addition, mobile terminal 1 002 can use processor 1014 to perform method 500-700 And/or other suitable methods of class Sihe.Mobile terminal 1 002 can also include modulator 1018, and it can pass through antenna 1008 It is multiplexed the signal transmitted by emitter 1020.
Referring to Figure 11, it provides the explanation of the wireless multiple-access communication system according to many aspects.In an example In, access point 1100 (AP) includes multiple antenna sets.As shown in figure 11, an antenna sets can include antenna 1104 and 1106, Another can include antenna 1108 and 1110, and also one can include antenna 1112 and 1114.Although for each day Only two antennas of line group are illustrated in fig. 11, but it is to be appreciated that more or less antennas can be used for each day Line group.In another example, access terminal 1116 can communicate with antenna 1112 and 1114, and wherein antenna 1112 and 1114 exists Receive to the transmitting information of access terminal 1116 and on reverse link 1118 and believe from access terminal 1116 on forward link 1120 Breath.Additionally and/or alternatively, access terminal 1112 can communicate with antenna 1106 and 1108, wherein antenna 1106 and 1108 To the transmitting information of access terminal 1122 on forward link 1126, and received on reverse link 1124 from access terminal 1122 Information.In Frequency Division Multiplexing system, communication link 1118,1120,1124 and 1126 can use different frequency to communicate.Example Such as, forward link 1120 can use the frequencies different from used in reverse link 1118.
Every group of antenna and/or the region that they are designated for communicating can be referred to as the sector of access point.According to one Aspect, the access terminal that antenna sets can be designated in the sector in the region covered with access point 1100 communicates.By preceding Into the communication of link 1120 and 1126, the transmitting antenna of access point 1100 can use beam forming to improve different accesses The signal to noise ratio of the forward link of terminal 1111 and 1122.Moreover, with by single antenna to it all access terminals launch connecing Access point is compared, using beam forming come into its whole coverage random scatter access terminal launch access point to adjacent Access point in cell causes less interference.
Access point (e.g., access point 1100) can be for the fixed station with terminal communication, its can also be referred to as base station, ENB, access network, and/or other suitable terms.In addition, access terminal (e.g., access terminal 1116 or 1122) can also be by Referred to as mobile terminal, user equipment, Wireless Telecom Equipment, terminal, wireless terminal, and/or other suitable terms.
Referring to Figure 12, block diagram illustrates exemplary wireless communication system 1200, which provide it is described herein each The function of aspect.In one example, system 1200 is multiple-input and multiple-output (MIMO) system, and it includes transmitter system 1210 With receiver system 1250.It is to be appreciated that however, transmitter system 1210 and/or receiver system 1250 can also be answered MISO system is used, wherein, for example, multiple transmitting antennas (e.g., on base station) can be to single antenna device (e.g., Mobile station) the one or more symbol streams of transmitting.Furthermore it is possible to, it is realized that transmitter system described herein 1210 and/or reception The aspect of machine system 1250 can be used in combination with single-input single-output antenna system.
According on one side, the business datum of multiple data flows is provided in transmitter system 1210 from data source 1212 Launch (TX) data processor 1214.In one example, each data flow can be followed by each transmitting antenna 1224 It is launched.In addition, the specific coding scheme that TX data processors 1214 can be based upon each data flow selection respectively carrys out lattice Formula, the business datum for encoding and interweaving each data flow, to provide coded data.In one example, can next it make The coded data of each data flow and pilot data are multiplexed with OFDM technology.The pilot data can be, for example, with known The known data pattern that mode is handled.In addition, pilot data can be used in receiver system 1250 to estimate channel response. Return to transmitter system 1210, can be based upon each difference data flow selection specific modulation mode (e.g., BPSK, QPSK, M-PSK or M-QAM) pilot tone and coded data of the multiplexing of (that is, symbol maps) each data flow modulating, to provide modulation symbol Number,.In one example, the data transfer rate of each data flow, coding and modulation can by being performed on processor 1230 or The instruction provided by processor 1230 is determined.
Next, the modulation symbol of all data flows can be provided to TX processors 1220, it can further be handled Modulation symbol (e.g., for OFDM).TX MIMO processors 1220 can be then by NTIndividual stream of modulation symbols is supplied to NTIndividual transmitting-receiving Machine 1222a to 1222t.In one example, each transceiver 1222 can receive and handle respective symbol stream to provide one Individual or multiple analog signals.Each transceiver 1222 then can further adjust and (e.g., amplify, filter and up-conversion) simulation Signal is suitable to the modulated signal transmitted on mimo channel to provide.Correspondingly, the N from transceiver 1222a to 1222tTIt is individual Modulated signal can be then respectively from NTIndividual antenna 1224a to 1224t transmittings.
According to a further aspect, the modulated signal of transmitting can be in receiver system 1250 by NRIndividual antenna 1252a to 1252r Receive.The signal of reception from each antenna 1252 can be then provided to corresponding transceiver 1254.In an example In, each transceiver 1254 can adjust and (e.g., amplify, filter and down coversion) signal received accordingly, and digitlization is conditioned Signal to provide sampling, be then followed by handling the sampling providing corresponding " receiving " symbol stream.RX MIMO/ data Processor 1260 can be next based on specific receiver treatment technology and receive and handle from NRThe N of individual transceiver 1254RIndividual quilt The symbol stream of reception, to provide NTIndividual " detected " symbol stream.In one example, the symbol stream being each detected can be wrapped Include the estimation of the modulation symbol for corresponding data streaming.RX processors 1260 can be then at least partially through demodulation, solution Interweave and decode each detected symbol stream to handle each symbol stream, to recover the business datum of corresponding data flow.Cause And, the processing of RX processors 1260 and TX MIMO processors 1220 and TX data processors 1216 at transmitter system 1210 The processing of execution is complementary.RX processors 1260 can provide treated symbol stream to data sink 1264 in addition.
Channel response estimation according on one side, being generated by RX processors 1260 can be used execution in receiver Space time processing, adjust power level, change modulation rate or square, and/or other suitable actions.In addition, RX processors 1260 can further estimate the characteristic of channel, for example, the signal and noise of the symbol stream of detection and interference are than (SNRS).RX processing The characteristic of channel of estimation and then can be supplied to processor 1270 by device 1260.In one example, RX processors 1260 and/or Processor 1270 can also guiding system " RUN " SNR estimation.Processor 1270 and then can provide channel condition information (CSI), it can include the information related to the data flow of communication link and/or reception.The information can include, for example, fortune Row SNR.The CSI and then can handle by TX data processors 1218, modulated by modulator 1280, by transceiver 1254a extremely 1254r is adjusted and is returned to transmitter system 1210.In addition, the data source 1216 at reception system 1250 can provide by The additional data handled by TX data processors 1218.
Transmitter system 1210 is returned to, the modulated signal from receiver system 1250 then can be connect by antenna 1224 Receive, adjusted by transceiver 1222, being demodulated device 1240 and demodulate, and handling to recover by receiver by RX data processors 1242 The CSI that system 1250 is reported.In one example, the CSI reported can be then provided to processor 1230 and be used for really Determine data transfer rate and to be used for the coding and modulation scheme of one or more data flows.The coding and modulation scheme of determination can connect And be provided to transceiver 1222, in quantization and/or the postpose transmission to receiver system 1250.Additionally or Alternatively, the CSI reported can be by processor 1230 using generating to TX data processors 1214 and TX MIMO processors 1220 various controls.In another example, the CSI and/or other information handled by RX data processors 1242 can be carried Supply data sink 1244.
In one example, the processor 1230 at transmitter system 1210 and the processing at receiver system 1250 Device 1270 indicates the operation of each of which system.In addition, memory 1232 at transmitter system 1210 and in receiver system The memory 1272 at 1250 of uniting can be respectively provide for storing program code and the data that processor 1230 and 1270 is used Memory.In addition, in receiver system 1250, various treatment technologies, which can be used, handles the NRThe signal of individual reception with Detect NTThe individual symbol stream being transmitted.These receiver treatment technologies can include space and Space-Time receiver treatment technology, its Balancing technique and/or " continuous zero/equilibrium and interference are eliminated " receiver treatment technology can also be referred to as, should " continuous zero/ Balanced and interference is eliminated " " successive interference cancellation " or " successive elimination " receiver treatment technology can also be referred to as.
It is appreciated that aspects described herein can be with hardware, software, firmware, middleware, microcode or their any group Close to realize.When system and/or method are realized with software, firmware, middleware or microcode, program code or code segment, they It can be stored in machine readable media, for example memory unit.Code segment can represent process, function, subprogram, program, Any combinations of routine, subroutine, module, software kit, class or instruction, data structure or program statement.Transmission can be passed through And/or code segment is coupled to another code segment or hardware circuit by receive information, data, variable, parameter or memory content. Any suitable means including Memory Sharing, messaging, token transmission, network transmission etc. can be used to transmit, turned Hair sends information, variable, parameter, data etc..
Realized for software, this can be realized with the module (for example, process, function etc.) of function described herein is performed Technology described by text.Software code can be stored in memory cell and be executed by processor.Memory cell can be with The internal or external of processor is implemented in, when outside processor, the memory cell can be via known in the art Various means are communicably coupled to processor.
Content described above includes the example of one or more aspects.Certainly, in order to describe foregoing aspects of purpose All combinations envisioned of part or method can not possibly be described, still, those skilled in the art will realize that various Many further combinations and permutations of aspect are possible.Therefore, described embodiment, which is intended to include, falls into appended right All such changes, change and change in the spirit and scope of claim.In addition, being just used in embodiment or right It is required that in term "comprising" scope for, the term is intended to inclusive, and it is used as right similar to term " comprising " It is required that in the mode explained when being used of transitional word.In addition, the "or" in embodiment or claim Mean " non-exclusive or ".

Claims (15)

1. a kind of device of packet transaction, including：
Module (134) for abandoning one or more packets in the discarding timer expiration of association；
Module (136) for carrying out packet transaction operation；
For determining whether the continuous quantity for being dropped packet has reached packet in the discarding timer expiration of the association Number of thresholds module (138)；
Wherein, the module for being used to abandon is used for when it is determined that continuously quilt during discarding timer expiration in the association When the quantity for abandoning packet is not reaching to the number of thresholds of the packet, by skipping at the packet to each follow-up packet Reason operates to abandon without handling the follow-up packet；
And wherein, the module for being used to handle is described when it is determined that abandoning one or more of packets is continuously lost When the quantity for abandoning packet reaches the number of thresholds of the packet, at least one processing is performed to each described follow-up packet and operated (202,204,206,208), at least one described processing operation includes the reconstruct of PDCP PDCP headers, encryption ginseng Several computing again or robust header compression RoHC's one or more of re-executes.
2. device according to claim 1, wherein, by block discarding one or more of points of the mould for being used to abandon Group and each described follow-up packet include PDCP protocol Data Unit PDU, and also include being used for based on do not lose with it is described The continuous packet that can be abandoned in the case of synchronization between the emitter RoHC engines and intended recipient equipment of device association Quantity, come the module of the number of thresholds that selects the packet.
3. device according to claim 2, wherein, the module for selection includes being used to be based on being passed by described device Header type used in each packet sent or described device bear level to packet loss or the synchronous expectation lost In at least one, come the module of the number of thresholds that selects the packet.
4. device according to claim 1, wherein, the follow-up packet is queued to transmit, and and grouped data The convergence protocol wireless spread-spectrum technology PDCP-RLC watermark stages are associated.
5. the device described in any one in claim 1 to 2, in addition to for selecting the number of thresholds of the packet Module, the number of thresholds is defined as the reckling in following quantity by it：Do not losing the emitter that is associated with described device The quantity for the continuous packet that can be abandoned in the case of synchronization between RoHC engines and intended recipient equipment and do not losing The quantity for the continuous packet that can be abandoned in the case of encryption synchronisation between emitter and receiving device.
6. device according to claim 1, in addition to：For based on the non-of the speech coder associated with described device The module for the number of thresholds for continuously transmitting the DTX cycles to select the packet, and also include：For based on not losing described The quantity for the continuous packet that can be abandoned in the case of encryption synchronisation between device and intended recipient equipment, to select described point The module of the number of thresholds of group.
7. device according to claim 6, wherein, the module for selection includes being used to use based on described device The PDCP sequence lengths for being used to transmit select the module of the number of thresholds of the packet.
8. device according to claim 1, in addition to：For based on header-compressed threshold value, encryption threshold value or voice coding At least one in device threshold value selects the module of the number of thresholds of the packet.
9. device according to claim 1, wherein：
Described device also includes：Module for initializing the continuous counting for being dropped packet, and for abandon one or Increase the module of the continuous counting for being dropped packet during multiple packets；And
The module for being used to determine includes：For determining whether the continuous counting for being dropped packet has exceeded described point The module of the number of thresholds of group, and for it is determined that the continuous counting for being dropped packet has exceeded the threshold value of the packet The module of the continuous counting for being dropped packet is reset during quantity.
10. a kind of method of packet transaction, including：
(502) one or more packets data convergence protocol PDCP protocol data lists are abandoned in the discarding timer expiration of association First PDU；
Carry out packet transaction operation；
It is determined that whether (504) continuous quantity for being dropped PDU when the discarding timer expiration of the association has reached PDU's Number of thresholds；
When it is determined that during discarding timer expiration in the association the continuous quantity for being dropped PDU be not reaching to it is described During PDU number of thresholds, operate to abandon (508) without handling institute by the packet transaction skipped over to each follow-up PDU State follow-up PDU；And
When it is determined that the continuous quantity for being dropped PDU has reached the number of thresholds of the PDU, each is follow-up to described PDU performs at least one processing operation, and at least one described processing operation includes the reconstruct of PDCP headers, the fortune again of encryption parameter Calculate or robust header compression RoHC one or more of is re-executed.
11. method according to claim 10, in addition to：Based on do not lose the emitter RoHC engines of association with it is expected that The quantity for the continuous P DU that can be abandoned in the case of synchronization between receiving device, to select the number of thresholds of the PDU, its In, selecting the number of thresholds of the PDU is included based on the header type or right as used in specifying for each PDU of transmission PDU loses or the synchronous expectation lost bears level to select the number of thresholds of the PDU.
12. method according to claim 10, in addition to：The discontinuous transmission of speech coder based on association DTX weeks Phase, the quantity based on the continuous P DU that can be abandoned in the case where not losing the encryption synchronisation with intended recipient equipment, based on use In the PDCP sequence lengths of transmission or based on header-compressed threshold parameter, encryption threshold parameter or speech coder threshold parameter In at least one, to select the number of thresholds of the PDU.
13. a kind of device of packet transaction, including：
One or more processors；
The memory of one or more of processors is coupled to, the memory storage has code, when the code is performed When cause one or more of processors to carry out following operate：
(502) one or more packets data convergence protocol PDCP protocol data lists are abandoned in the discarding timer expiration of association First PDU；
Carry out packet transaction operation；
It is determined that whether (504) continuous quantity for being dropped PDU when the discarding timer expiration of the association has reached PDU's Number of thresholds；
When it is determined that during discarding timer expiration in the association the continuous quantity for being dropped PDU be not reaching to it is described During PDU number of thresholds, operate to abandon (508) without handling institute by the packet transaction skipped over to each follow-up PDU State follow-up PDU；And
When it is determined that the continuous quantity for being dropped PDU has reached the number of thresholds of the PDU, each is follow-up to described PDU performs at least one processing operation, and at least one described processing operation includes the reconstruct of PDCP headers, the fortune again of encryption parameter Calculate or robust header compression RoHC one or more of is re-executed.
14. device according to claim 13, in addition to cause one or more of processors to carry out following operation Code：Based on can be abandoned in the case where not losing synchronous between the emitter RoHC engines of association and intended recipient equipment Continuous P DU quantity, to select the number of thresholds of the PDU, wherein, select the number of thresholds of the PDU include being based on by Level is born in the expectation for specifying for header type used in each PDU of transmission or losing or synchronously losing to PDU To select the number of thresholds of the PDU.
15. device according to claim 13, in addition to cause one or more of processors to carry out following operation Code：The discontinuous transmission DTX cycles of speech coder based on association, based on not losing the encryption with intended recipient equipment The quantity for the continuous P DU that can be abandoned in the case of synchronization, based on the PDCP sequence lengths for transmission or based on header-compressed Threshold parameter, encryption threshold parameter or speech coder threshold parameter at least one, to select the number of threshold values of the PDU Amount.
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